gamification-engine (gengine) is an open source software (AGPL) for integrating any kinds of gamification features into your product.

• multi level achievements
• multi goal achievements
• progress and single goals
• leader boards / ladder
• achievements can be reached directly, daily, weekly, monthly or yearly
• time zone independent (correct daily, weekly.. evaluations among time zones)
• social dependencies (e.g. each the highest score among your friends)
• localized achievements (e.g. reach the highest score among all users in Germany)
• custom definable rules and strings
• custom definable achievement properties and rewards
• custom definable languages and translations
• dependencies between achievements (prerequisites & postconditions)
• high performance / scalable
• administrative fronted

simple rest-interface to communicate with arbitrary Systems

see http://gamification-engine.readthedocs.org/en/latest/rest/index.html

Do you want to contribute? We badly need tests! Also a nicer admin UI would be great or maybe some cool features :-)

For a full list see:

http://gamification-engine.readthedocs.org/en/latest/roadmap.html

We developed the gamification engine for ActiDoo (www.actidoo.com) and extracted the component to release it to the open source community. We offer commercial support at www.gamification-software.com

You may use the engine in commercial products, but you need to contribute all your modifications and improvements back to the community.